The Optimization Research of Wide Strip and Full-Pillar Mining under Villages

Abstract:

By making full use of the advantages of strip mining method and full-pillar mining method, the wide strip and full-pillar mining method can achieve the aim of mining under villages. However, at the full-pillar mining stage, the difficulty in managing several workfaces which are at work at the same time still exists. To improve the wide strip and full-pillar mining method’s applicability, an optimization of extraction sequence for coal pillars instead of the multi-working-face is put forward at the stage of full-pillar mining, and in the case of the deformation limit of surface structures is satisfied, to extract all the coal pillars which are under villages. By specific analysis of the extraction sequence optimization of the coal pillars in No.1 mine under Qian Xudapo village which belongs to Chang Chun coal Co., LTD., a better result is got which also acts a technological reference for the extraction under villages.

• Periodical: Advanced Materials Research (Volumes 616-618)
• Pages: 406-410
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.616-618.406
• Online since: December 2012
• Authors: Gui Liu, Hua Xing Zhang, Jin Hui Chen, Chao Gao
• Keywords: Dynamic Deformation, Extraction Sequence Optimization, Full-Pillar Mining, Wide Strip

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